"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : 系统内部使用工具
Case Name   : 运行事务不提交，gs_ctl restart不指定-w启动数据库，事务是否回滚
Create At   : 2021/01/25
Owner       : opentestcase015
Description :
    1.开启并执行事务(不做提交)
    2.开启新的session使用gs_ctl restart进行重启（不指定-w）
    3.查看主机状态与事务是否回滚
    4.恢复集群状态
Expect      :
    1.开启且执行事务成功
    2.开启新的session使用gs_ctl restart进行重启成功，未等待事务
    3.主机状态正常、事务回滚
    4.成功
History     :
    Modified by opentestcase027 2023/1/10: 优化用例步骤格式及一主两备判断方式
"""

import unittest
import time
import os
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant
from testcase.utils.Logger import Logger
from yat.test import Node
from yat.test import macro

LOG = Logger()
primary_sh = CommonSH('PrimaryDbUser')


@unittest.skipIf(3 != primary_sh.get_node_num(), '非1+2环境不执行')
class SystemInternalTools(unittest.TestCase):
    def setUp(self):
        LOG.info(f'--------{os.path.basename(__file__)} start--------')
        self.constant = Constant()
        self.PrimaryNode = Node('PrimaryDbUser')
        self.sh_primary = CommonSH('PrimaryDbUser')
        self.StandbyNode = Node('Standby1DbUser')
        self.sh_standby = CommonSH('Standby1DbUser')
        self.t_name = 't_gs_ctl_0024'

    def test_system_internal_tools(self):
        LOG.info('--------step1:开启并执行事务  expect:开启且执行事务成功--------')
        transaction_msg = self.sh_primary.execut_db_sql(f'''drop table if
            exists {self.t_name}; 
            start transaction; 
            create table {self.t_name} (a integer);''')
        LOG.info(transaction_msg)
        self.assertIn(self.constant.TABLE_CREATE_SUCCESS, transaction_msg)
        self.assertIn(self.constant.START_TRANSACTION_SUCCESS_MSG,
                      transaction_msg)

        LOG.info('--------step2:使用gs_ctl重启主机  expect:重启成功--------')
        self.restart_cmd = f'''source {macro.DB_ENV_PATH};
            gs_ctl restart -D {macro.DB_INSTANCE_PATH} -M primary ;
            '''
        LOG.info(self.restart_cmd)
        restart_msg = self.PrimaryNode.sh(self.restart_cmd).result()
        LOG.info(restart_msg)
        self.assertIn(self.constant.RESTART_SUCCESS_MSG, restart_msg)
        time.sleep(10)

        LOG.info('--------step3:校验主机状态并查询事务 '
                 'expect:主机状态正常、事务回滚--------')
        status = self.sh_primary.get_db_instance_status()
        self.assertTrue(status)
        transaction_msg = self.sh_primary.execut_db_sql(
            f'select count(*) from {self.t_name}')
        LOG.info(transaction_msg)
        self.assertIn(self.constant.NOT_EXIST, transaction_msg)

    def tearDown(self):
        LOG.info('--------step4:恢复集群状态 expect:成功--------')
        recover = self.sh_primary.restart_db_cluster()
        LOG.info(recover)
        self.assertTrue(recover)
        recover_msg = self.sh_standby.get_db_cluster_status(param='detail')
        LOG.info(recover_msg)
        self.assertTrue(self.constant.CLUSTER_NORMAL_MSG in recover_msg)
        LOG.info(f'--------{os.path.basename(__file__)} end--------')
